Modularized prefabricated concrete intercepting well

Abstract

The utility model relates to a modular precast concrete catch basin, which belongs to the technical field of catch basins, and comprises a plurality of catch basin pipe bodies stacked in sequence, a plurality of connecting through holes are formed in the catch basin pipe bodies in a penetrating manner, control cavities corresponding to the connecting through holes are formed in the inner walls of the catch basin pipe bodies, and the control cavities are communicated with the connecting through holes. Every two adjacent intercepting well pipe bodies are fixed through a connecting screw rod, the two adjacent intercepting well pipe bodies are divided into upper pipe bodies and lower pipe bodies, the connecting screw rods penetrate through the connecting through holes, the two ends of each connecting screw rod are located in the control cavities of the corresponding upper pipe body and the corresponding lower pipe body respectively, and the two ends of each connecting screw rod are in threaded connection with connecting nuts; the connecting nut is attached to the inner wall of the control cavity, so that in the earthwork backfilling and compacting process, the whole intercepting well is not prone to being extruded and dislocated under the action of external force, and the sealing performance of the whole intercepting well formed by the intercepting well pipe bodies is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of intercepting wells, in particular to a modular precast concrete intercepting well. Background Art

[0002] An intercepting well, also called a pollution interception well or a drainage well, is a facility specifically used for the urban drainage system, mainly for intercepting and treating rainwater and sewage, especially in old urban areas or urban villages where the transformation of rainwater and sewage diversion is not feasible.

[0003] In the prior art, in order to reduce the production cycle of the intercepting well, precast concrete intercepting wells are mostly used. The precast concrete intercepting well has the advantages of simple production process and low cost, and most of the precast concrete intercepting wells used in the construction process are produced by modern production equipment and professional technicians, and its quality is controllable.

[0004] The precast concrete intercepting well is divided into integral and modular types. If the overall length of the intercepting well is relatively long, a modular precast concrete intercepting well needs to be used. The modular precast concrete intercepting well is stacked by multiple intercepting well pipe bodies relying on their own weights. However, it is found in the actual construction process that during the process of soil backfilling and compaction, the stacked intercepting well pipe bodies are prone to the risk of extrusion misalignment due to the action of the soil, which will cause the overall seal of the formed intercepting well to be poor and leakage to occur. Summary of the Utility Model

[0005] In order to make the overall intercepting well formed by stacking multiple intercepting well pipe bodies not easily extruded and misaligned under the action of external forces, and effectively ensure the overall sealing performance of the formed intercepting well, the present application provides a modular precast concrete intercepting well.

[0006] A modular precast concrete intercepting well provided by the present application adopts the following technical solutions:

[0007] A modular precast concrete intercepting well includes a plurality of intercepting well pipe bodies stacked in sequence. A plurality of connecting through holes are formed through the intercepting well pipe bodies. The connecting through holes are arranged along the axial direction of the intercepting well pipe bodies, and the plurality of connecting through holes are arranged in a circumferential array with the axis of the intercepting well pipe body as the center;

[0008] A control cavity corresponding to the connecting through hole is arranged on the inner wall of the intercepting well pipe body. The control cavity is communicated with the connecting through hole. Adjacent two intercepting well pipe bodies are fixed by connecting screws. Adjacent two intercepting well pipe bodies are divided into an upper pipe body and a lower pipe body. The connecting screw passes through the connecting through hole. Two ends of the connecting screw are respectively located in the control cavities of the upper pipe body and the lower pipe body. Connecting nuts are threadedly connected to both ends of the connecting screw, and the connecting nuts are attached to the inner wall of the control cavity.

[0009] By adopting the above technical solution, with the cooperation of the connecting screw and the connecting nut, the adjacent two interception well pipe bodies are fixed, so that the overall interception well is not easily squeezed and misaligned under the action of external forces during the process of soil backfilling and compaction, effectively ensuring the overall sealing performance of the interception well. With the cooperation of the connecting screw and the connecting through hole, the positioning accuracy during the installation of the adjacent two interception well pipe bodies is improved, further enhancing the overall sealing performance of the interception well and reducing the misalignment caused by the misalignment of the interception well pipe bodies in the overall interception well.

[0010] Preferably, a sealing ring is embedded between the adjacent two interception well pipe bodies, and a sealing groove for the sealing ring to be embedded is provided on the interception well pipe body.

[0011] By adopting the above technical solution, with the cooperation of the sealing ring and the sealing groove, the sealing performance between the adjacent two interception well pipe bodies is further ensured.

[0012] Preferably, a bolt pipe is provided on the interception well pipe body. The bolt pipe is located in the connecting through hole, and the outer wall of the bolt pipe fits with the inner wall of the connecting through hole.

[0013] By adopting the above technical solution, through the setting of the bolt pipe, the strength of the interception well pipe body is effectively enhanced, so that the interception well pipe body is not easily cracked due to the force at the connecting through hole, and to a certain extent, the service life of the interception well pipe body is prolonged.

[0014] Preferably, a lifting eye bolt is also provided on the interception well pipe body. The lifting eye bolt includes a lifting eye part and a screw part. The screw part passes through the connecting through hole. The lifting eye part fits with the end of the interception well pipe body. One end of the screw part away from the lifting eye part extends into the control cavity of the interception well pipe body, and a lifting eye nut is threadedly connected to the screw part. The lifting eye nut fits with the inner wall of the control cavity.

[0015] By adopting the above technical solution, when the interception well pipe body is hoisted by the lifting eye bolt, since a plurality of connecting through holes are arranged in a circumferential array centered on the axis of the interception well pipe body, during the hoisting process of the interception well pipe body, it is more convenient to level and align the center. It can not only reduce the sealing failure caused by the misalignment during hoisting installation, but also improve the hoisting efficiency of the interception well pipe body, and thus improve the construction efficiency of the interception well.

[0016] Preferably, the distances between the two ends of the interception well pipe body and the control cavity are the same, and sealing grooves are provided at both ends of the interception well pipe body.

[0017] By adopting the above technical solution, the positions of the control cavity and the sealing groove are defined, so that whether the intercepting well pipe body is placed upright or upside down does not affect the connection between two adjacent intercepting well pipe bodies. Therefore, during the production process of the intercepting well pipe body, there is no need to distinguish the connection sequence of the intercepting well pipe bodies, effectively reducing the construction cost and improving the construction efficiency of the intercepting well.

[0018] Preferably, bolt washers are provided between the connection nut and the lifting ring nut and the inner wall of the control cavity.

[0019] By adopting the above technical solution, on the one hand, the bolt washer can increase the contact area between the connection nut and the inner wall of the control cavity, thereby improving the stability and tightness of the connection, and can also play a certain sealing role, making the sewage in the intercepting well not easily enter the bolt pipe, and delaying the corrosion of the connection screw under the action of sewage.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. With the cooperation of the connection screw and the connection nut, two adjacent intercepting well pipe bodies are fixed, so that the overall intercepting well is not easily squeezed and displaced under the action of external forces during the process of soil backfilling and compaction, effectively ensuring the overall sealing performance of the intercepting well. With the cooperation of the connection screw and the connection through hole, the positioning accuracy during the installation of two adjacent intercepting well pipe bodies is improved, further enhancing the overall sealing performance of the intercepting well and reducing the dislocation of the overall intercepting well caused by the dislocation of the intercepting well pipe body;

[0022] 2. With the cooperation of the sealing ring and the sealing groove, the sealing performance between two adjacent intercepting well pipe bodies is further ensured;

[0023] 3. When hoisting the intercepting well pipe body through the lifting ring bolt, since multiple connection through holes are arranged in a circumferential array centered on the axis of the intercepting well pipe body, during the hoisting process of the intercepting well pipe body, it is more convenient to level and align the center. It can not only reduce the sealing failure caused by hoisting and installation dislocation, but also improve the hoisting efficiency of the intercepting well pipe body, and further improve the construction efficiency of the intercepting well. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0025] Figure 2 is the cross-sectional view in the embodiment of the present application.

[0026] Description of the reference numerals: 1. Intercepting well pipe body; 11. Upper pipe body; 12. Lower pipe body; 13. Connection through hole; 14. Control cavity; 15. Connection screw; 151. Connection nut; 2. Bolt washer; 3. Sealing ring; 31. Sealing groove; 4. Lifting ring bolt; 41. Lifting ring part; 42. Screw part; 43. Lifting ring nut. Detailed implementation mode

[0027] The following will further elaborate on the present utility model in conjunction with the attached Figure 1-2 drawings.

[0028] An embodiment of the present application discloses a modular precast concrete intercepting well. Referring to Figure 1 and Figure 2 , it includes a plurality of intercepting well pipe bodies 1 stacked in sequence. The number of intercepting well pipe bodies 1 depends on the actual construction situation. Adjacent two intercepting well pipe bodies 1 are assembled and fixed to form the overall intercepting well. A plurality of connecting through holes 13 are formed through the intercepting well pipe body 1. The connecting through holes 13 are arranged along the axial direction of the intercepting well pipe body 1, and the plurality of connecting through holes 13 are arranged in a circumferential array with the axis of the intercepting well pipe body 1 as the center. The number of connecting through holes 13 depends on the size of the intercepting well pipe body 1 itself. In the embodiment of the present application, four connecting through holes 13 are provided on the intercepting well pipe body 1.

[0029] Referring to Figure 1 and Figure 2 , a control cavity 14 corresponding to the connecting through hole 13 is provided on the inner wall of the intercepting well pipe body 1. The control cavity 14 is communicated with the connecting through hole 13. The control cavity 14 can be integrally formed during the production process of the intercepting well pipe body 1, so that the distances between both ends of the intercepting well pipe body 1 and the control cavity 14 are the same, and the connecting through hole 13 is located in the middle of the control cavity 14, so that whether the intercepting well pipe body 1 is placed upright or upside down does not affect the connection between adjacent two intercepting well pipe bodies 1. Therefore, during the assembly process of the intercepting well pipe body 1, there is no need to distinguish the connection sequence of the intercepting well pipe body 1, effectively reducing the construction cost and improving the construction efficiency of the intercepting well.

[0030] Referring to Figure 1 and Figure 2 , a bolt pipe is provided on the intercepting well pipe body 1. The bolt pipe is located in the connecting through hole 13, and the outer wall of the bolt pipe fits with the inner wall of the connecting through hole 13. The bolt pipe can be fixed on the intercepting well pipe body 1 by embedding. It should be noted that the connecting through hole 13 is truncated by the control cavity 14 as a whole. One end of the bolt pipe is flush with the end face of the intercepting well pipe body 1, and the other end of the bolt pipe is flush with the inner wall of the adjacent control cavity 14. Through the setting of the bolt pipe, the strength of the intercepting well pipe body 1 is effectively enhanced, and to a certain extent, the service life of the intercepting well pipe body 1 can be extended.

[0031] Referring to Figure 1 and Figure 2, two adjacent intercepting well pipe bodies 1 are fixed by connecting screws 15. For the convenience of description, two adjacent intercepting well pipe bodies 1 are divided into an upper pipe body 11 and a lower pipe body 12. During the actual installation process, first rotate the upper pipe body 11 until the connecting through hole 13 on the upper pipe body 11 communicates with the connecting through hole 13 on the lower pipe body 12, and then pass the connecting screw 15 through the connecting through hole 13 on the upper pipe body 11. Move the connecting screw 15 until one end of the connecting screw 15 is located in the control cavity 14 of the upper pipe body 11 and the other end of the connecting screw 15 is located in the control cavity 14 of the lower pipe body 12. Threaded connection nuts 151 are provided at both ends of the connecting screw 15. The outer diameter of the connection nut 151 is larger than the inner diameter of the connecting through hole 13. A bolt gasket 2 is also provided between the connection nut 151 and the inner wall of the control cavity 14. When the connection nut 151 rotates until one end of the bolt gasket 2 abuts against the connection nut 151 and the other end of the bolt gasket 2 abuts against the inner wall of the control cavity 14, the connecting screw 15 is not likely to move relative to the intercepting well pipe body 1, and the assembly between two adjacent intercepting well pipe bodies 1 is completed.

[0032] With the cooperation of the connecting screw 15 and the connection nut 151, two adjacent intercepting well pipe bodies 1 are fixed, so that the whole intercepting well is not likely to be squeezed and misaligned under the action of external forces during the process of soil backfilling and compaction, effectively ensuring the overall sealing performance of the intercepting well. With the cooperation of the connecting screw 15 and the connecting through hole 13, the positioning accuracy during the installation of two adjacent intercepting well pipe bodies 1 is improved, further enhancing the overall sealing performance of the intercepting well and reducing the misalignment of the whole intercepting well caused by the misalignment of the intercepting well pipe body 1.

[0033] On the one hand, the bolt gasket 2 can increase the contact area between the connection nut 151 and the inner wall of the control cavity 14, thereby improving the stability and tightness of the connection. It can also play a certain sealing role, making the sewage in the intercepting well not easily enter the bolt pipe and delaying the corrosion of the connecting screw 15 under the action of sewage.

[0034] Refer to Figure 1 and Figure 2 , a sealing ring 3 is embedded between two adjacent intercepting well pipe bodies 1. Sealing grooves 31 for the sealing ring 3 to be embedded are symmetrically provided at both ends of the intercepting well pipe body 1. With the cooperation of the sealing ring 3 and the sealing grooves 31, the sealing performance between two adjacent intercepting well pipe bodies 1 is further ensured.

[0035] Refer to Figure 1 and Figure 2, a lifting ring bolt 4 is also provided on the intercepting well pipe body 1. The lifting ring bolt 4 includes a lifting ring portion 41 and a screw portion 42. One end of the screw portion 42 of the lifting ring bolt 4 is passed through the connecting through hole 13, and the lifting ring bolt 4 is moved until the lifting ring portion 41 fits against the end of the intercepting well pipe body 1. At this time, the end of the screw portion 42 away from the lifting ring portion 41 extends into the control cavity 14 of the intercepting well pipe body 1. A lifting ring nut 43 is threadedly connected to the screw portion 42, and a bolt gasket 2 is also provided between the lifting ring nut 43 and the inner wall of the control cavity 14. The lifting ring nut 43 is rotated until one end of the bolt gasket 2 abuts against the lifting ring nut 43, and the other end of the bolt gasket 2 abuts against the inner wall of the control cavity 14 to complete the fixation of the lifting ring bolt 4. The intercepting well pipe body 1 can be hoisted through the lifting ring bolt 4. Since the four connecting through holes 13 are arranged in a circumferential array centered on the axis of the intercepting well pipe body 1, during the hoisting process of the intercepting well pipe body 1, it is more convenient to level and align the center, which can not only reduce the sealing failure caused by misalignment during hoisting and installation, but also improve the hoisting efficiency of the intercepting well pipe body 1, thereby improving the construction efficiency of the intercepting well.

[0036] In the prior art, when installing the intercepting well pipe body 1, a hoisting process hole needs to be opened on the pipe wall. In the embodiment of the present application, with the cooperation of the lifting ring bolt 4 with the connecting through hole 13 and the control cavity 14, the hoisting steps of the intercepting well pipe body 1 are simplified, thereby improving the construction efficiency of the intercepting well.

[0037] If the size of the intercepting well pipe body 1 used to form the overall intercepting well is small, the intercepting well pipe body 1 can be assembled into the overall intercepting well and then hoisted as a whole into the dug intercepting well hole, thereby further improving the construction efficiency of the intercepting well.

[0038] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A modular precast concrete intercepting well, comprising a plurality of intercepting well pipe bodies (1) stacked in sequence, characterized in that, A plurality of connecting through holes (13) are formed through the intercepting well pipe body (1), the connecting through holes (13) are arranged along the axial direction of the intercepting well pipe body (1), and the plurality of connecting through holes (13) are arranged in a circumferential array centered on the axis of the intercepting well pipe body (1); A control cavity (14) corresponding to the connecting through hole (13) is provided on the inner wall of the intercepting well pipe body (1), the control cavity (14) is communicated with the connecting through hole (13), adjacent two intercepting well pipe bodies (1) are fixed by a connecting screw rod (15), adjacent two intercepting well pipe bodies (1) are divided into an upper pipe body (11) and a lower pipe body (12), the upper pipe body (11) is connected with the lower pipe body (12) by the connecting screw rod (15), the connecting screw rod (15) passes through the connecting through hole (13), two ends of the connecting screw rod (15) are respectively located in the control cavities (14) of the upper pipe body (11) and the lower pipe body (12), connecting nuts (151) are screwed at both ends of the connecting screw rod (15), and the connecting nuts (151) are attached to the inner wall of the control cavity (14).

2. The modular precast concrete intercepting well according to claim 1, wherein, A sealing ring (3) is embedded between adjacent two intercepting well pipe bodies (1), and a sealing groove (31) for embedding the sealing ring (3) is formed on the intercepting well pipe body (1).

3. The modular precast concrete intercepting well according to claim 1, wherein, A bolt pipe is provided on the intercepting well pipe body (1), the bolt pipe is located in the connecting through hole (13), and the outer wall of the bolt pipe is attached to the inner wall of the connecting through hole (13).

4. The modular precast concrete intercepting well according to claim 2, characterized in that, A lifting eye bolt (4) is also equipped on the intercepting well pipe body (1), the lifting eye bolt (4) includes a lifting eye part (41) and a screw rod part (42), the screw rod part (42) passes through the connecting through hole (13), the lifting eye part (41) is attached to the end of the intercepting well pipe body (1), one end of the screw rod part (42) far away from the lifting eye part (41) extends into the control cavity (14) of the intercepting well pipe body (1), a lifting eye nut (43) is screwed on the screw rod part (42), and the lifting eye nut (43) is attached to the inner wall of the control cavity (14).

5. The modular precast concrete intercepting well according to claim 2, wherein, The distances between both ends of the intercepting well pipe body (1) and the control cavity (14) are the same, and sealing grooves (31) are provided at both ends of the intercepting well pipe body (1).

6. The modular precast concrete intercepting well according to claim 4, characterized in that, Bolt gaskets (2) are provided between the connecting nuts (151) and the lifting eye nuts (43) and the inner walls of the control cavities (14).

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